thenumberofpeopleinvitedfifty,butanumberofthemabsentfordifferetreasonsA.were;wasB.was;wasC.was;wereD.were;were

Question

the number of people invited _______ fifty,but a number of them ______________ absent for differet reasons
A.were;was B.was;was
C.was;were D.were;were

Answer 1

the number of people invited _______ fifty, but a number of them ______________ absent for differet reasons
A.were;was B.was;was
C.was;were D.were;were
选C [the number of ……的数量（中心词是number,单数）,而a number of 一些；许多（表示复数）]